Navigate

A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is

A tuning fork vibrates with 2 beats in 0.04 second. The frequency of the fork is

Options

(a) 50 Hz
(b) 100 Hz
(c) 80 Hz
(d) None of these

Correct Answer:

50 Hz

Explanation:

Beats / sec = difference of frequencies
2 / 0.04 = frequency difference
Frequency difference = 2 × 100 / 4 = 50 Hz

AFMC2002
admin:

Related Questions

  1. What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
  2. In Young’s double slit experiment, the fringe width is 1×10⁻⁴ m, if the distance
  3. If ₉₂U²³⁸ undergoes successively 8 ∝-decays and 6 β-decays, the resulting nucleus is
  4. The magnetic susceptibility of a material of a rod is 449. Permeability of vaccum
  5. From a disc of radius R, a concentric circular portion of radius r is cut-out so